At the end of this activity, students should be able to: û understand the concept of flux density. û calculate the EMF value of a rotating frame. û calculate the work and power of an alternating current. û understand how a generator operates. û describe an alternating current. û give the definition of r.m.s. voltage and r.m.s. current. û give the definition of inductance, ohmic resistance and reactance.

Originally released by Learnetic, 2016.